Publication

Measurements of light fields emerging from fine amplitude gratings

Hans Peter Herzig, Toralf Scharf, Myun Sik Kim
2010
Conference Papers

Abstract

High resolution amplitude and phase of light fields emerging from a 2-μm-period amplitude grating are measured for different wavelengths. The amplitude gratings lead to highly periodic patterns caused by the Talbot effect. Such patterns reach periodicities of a fraction of the grating period. We discuss the effect of wavelengths and the number of diffraction orders participating in the imaging.

Official source

https://infoscience.epfl.ch/entities/publication/20ce6f36-74f1-4496-b9f8-c82f9e6a9fc9

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Hans Peter Herzig, Toralf Scharf, Myun Sik Kim
2010
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/20ce6f36-74f1-4496-b9f8-c82f9e6a9fc9

About this result

Related concepts (10)

Diffraction grating

In optics, a diffraction grating is an optical grating with a periodic structure that diffracts light into several beams travelling in different directions (i.e., different diffraction angles). The emerging coloration is a form of structural coloration. The directions or diffraction angles of these beams depend on the wave (light) incident angle to the diffraction grating, the spacing or distance between adjacent diffracting elements (e.g., parallel slits for a transmission grating) on the grating, and the wavelength of the incident light.

Periodic table

The periodic table, also known as the periodic table of the elements, arranges the chemical elements into rows ("periods") and columns ("groups"). It is an organizing icon of chemistry and is widely used in physics and other sciences. It is a depiction of the periodic law, which says that when the elements are arranged in order of their atomic numbers an approximate recurrence of their properties is evident. The table is divided into four roughly rectangular areas called blocks.

Extended periodic table

An extended periodic table theorises about chemical elements beyond those currently known in the periodic table and proven. , the element with the highest atomic number known is oganesson (Z = 118), which completes the seventh period (row) in the periodic table. All elements in the eighth period and beyond thus remain purely hypothetical. Elements beyond 118 will be placed in additional periods when discovered, laid out (as with the existing periods) to illustrate periodically recurring trends in the properties of the elements concerned.

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